I have two tables namely,
Rent_Entity and Rent_Modification.
Rent Entity has all the information about the tenant/contract. Rent Modification is for any rent increase/decrease happened on the contract level.
Now let's say, if I have to select the rent roll for today, I will get all the latest data for the specific contract. But If someone asks me to provide the rent roll on a specific date in past, I need to have the rent for specific contract at that point of time.
If I take the rent roll for this contract 70_M_05.01, it will give me the rent 568.9 but If I need the rent roll in jan 2019 or in any past date then the rent should show 468.9 as you can see in the old_value of rent_modification table. I also have to have include certain criteria like state = "approved" and Kind = "RENT".
I see something strange in your second table, should not the second row have an end date? Should not the 'start_date' be different between the first row and the second row?
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Hi @LivioLanzo , It's correct. Somtimes because of some faulty entries we have this kind of data in the db. We don't have end_date for RENT increase because it's a one time increment. End_Date is for other kind of Rent Increase/Decrease where we do certain amount increment/decrement each month for a period of time. For eg. Rent reduction because of something broke in the apartment then we give tenants a discount on rent for few months.
Hi @Ashish_Mathur . Since the rent increment was happened on 1st Feb 2019 as you see in the rent_modification table. So if I need the rent roll for Jan it should be the previous rent before the increment which is 468.9 in the old_value column.